. Typical cases of the deterioration of muntz metal (60:40 brass) by selective corrosion. . PRICE, 10 CENTS Sold only by the Superintendent of Documents, Government Printing OfficeWashington, D. C. WASHINGTON GOVERNMENT PRINTING OFFICE 1917. Fig. i.—Types of corroded Muntz metal (a) Surface of a badly corroded Muntz metal bolt. (b) Cross and longitudinal sections of the corroded portion of bolt a, unetched (X 2). The outer or attacked portion is copper-red; the center has the yellow color of uncorroded brass. (c) Boat sheathing after dezincification (Xi). The portion at the right was broken in
. Typical cases of the deterioration of muntz metal (60:40 brass) by selective corrosion. . PRICE, 10 CENTS Sold only by the Superintendent of Documents, Government Printing OfficeWashington, D. C. WASHINGTON GOVERNMENT PRINTING OFFICE 1917. Fig. i.—Types of corroded Muntz metal (a) Surface of a badly corroded Muntz metal bolt. (b) Cross and longitudinal sections of the corroded portion of bolt a, unetched (X 2). The outer or attacked portion is copper-red; the center has the yellow color of uncorroded brass. (c) Boat sheathing after dezincification (Xi). The portion at the right was broken into the fragments shown by the fingers alone. TYPICAL CASES OF THE DETERIORATION OF MUNTZMETAL (60:40 BRASS) BY SELECTIVE CORROSION By Henry S. Rawdon CONTENTS Page I. Introduction ?? II. Characteristic appearance of typical cases 4 1. Wrought bolts 4 2. Sheathing IO 3. Condenser tubes 10 4. Corrosion of parts while under stress 10 III. Microstructural features 13 1. Unchanged Muntz metal 13 2. Microstructure after deterioration 14 3. Behavior of a brass under similar conditions 15 4. Progress of attack within the j3 crystals 17 IV. Conditions influencing dezincification 17 1. Structural composition 17 2. Contact with electronegat
Size: 1201px × 2082px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidtypicalcasesof1917103rawd
